2003 Mercury Grand Marquis radio

The fuses are coded as follows.
Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse Panel
Description
1 15A Audio, CD changer
2 5A Audio
3 7.5A Mirrors
4 10A Air bags
5 — Not used
6 15A Instrument cluster warning lamps module,
Overdrive control switch, Lighting Control
Module (LCM), A/C clutch
7 10A Driver’s Door Module (DDM), Premium
radio
8 25A Powertrain Control Module (PCM) power
relay, Coil-on plugs, Radio noise capacitor,
Passive Anti-Theft System (PATS)
9 5A Transmission range sensor
10 10A Rear window defrost, Heated mirrors
27 25
26 2423 21
2219
20
18 16
17 1514 12
131030
32
31
28
29
11
97
8653
41
2
2003 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Roadside Emergencies
165

Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse Panel
Description
11 5A Traction control indicator relay (ABS
w/traction control only)
12 15A Multi-function switch for turn/hazard
lamps
13 5A Radio
14 10A Anti-lock Brake System (ABS), Instrument
Cluster
15 15A Speed control module, LCM, Clock, EATC
blower motor relay, Door lock switch
illumination, Heated seat switch, Moonroof
16 15A Reversing lamps, Shift lock, DRL module,
VAP Steering, Electronic day/night mirror,
Overhead console, Air suspension, Climate
control, Heated seat module, Speed chime
module (GCC only)
17 7.5A Wiper motor
18 — Not used
19 15A Brake lamps
20 — Not used
21 15A LCM for park lamps and interior
illumination, Autolamp/Sunload sensor
22 20A Speed control servo, Multi-function switch
for hazard lamps, Brake on/off switch
23 15A EATC module, Instrument cluster, Clock,
LCM, Interior lamps, Door lock switches
24 10A Left-hand low beam
25 15A Cigar lighter
26 10A Right-hand low beam
27 25A LCM for cornering lamps and high beam
headlamps
28 20A* Power windows, DDM
29 — Not used
2003 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Roadside Emergencies
166

When lifting a plastic-cased battery, excessive pressure on the
end walls could cause acid to flow through the vent caps,
resulting in personal injury and/or damage to the vehicle or battery.
Lift the battery with a battery carrier or with your hands on opposite
corners.
Keep batteries out of reach of children. Batteries contain sulfuric
acid. Avoid contact with skin, eyes or clothing. Shield your eyes
when working near the battery to protect against possible splashing of
acid solution. In case of acid contact with skin or eyes, flush
immediately with water for a minimum of 15 minutes and get prompt
medical attention. If acid is swallowed, call a physician immediately.
Battery posts, terminals and related accessories contain lead and
lead compounds.Wash hands after handling.
Because your vehicle’s engine is electronically controlled by a computer,
some control conditions are maintained by power from the battery. When
the battery is disconnected or a new battery is installed, the engine must
relearn its idle and fuel trim strategy for optimum driveability and
performance. To begin this process:
1. With the vehicle at a complete stop, set the parking brake.
2. Put the gearshift in P (Park), turn off all accessories and start the
engine.
3. Run the engine until it reaches normal operating temperature.
4. Allow the engine to idle for at least one minute.
5. Turn the A/C on and allow the engine to idle for at least one minute.
6. Release the parking brake. With your foot on the brake pedal and with
the A/C on, put the vehicle in D (Drive) and allow the engine to idle for
at least one minute.
7. Drive the vehicle to complete the relearning process.
•The vehicle may need to be driven 16 km (10 miles) or more to
relearn the idle and fuel trim strategy.
•If you do not allow the engine to relearn its idle trim, the idle
quality of your vehicle may be adversely affected until the idle
trim is eventually relearned.
If the battery has been disconnected or a new battery has been installed,
the clock and radio settings must be reset once the battery is
reconnected.
2003 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
203

For maximum vehicle performance, keep the following information in
mind when adding accessories or equipment to your vehicle:
•When adding accessories, equipment, passengers and luggage to your
vehicle, do not exceed the total weight capacity of the vehicle or of
the front or rear axle (GVWR or GAWR as indicated on the Safety
compliance certification label). Consult your dealer for specific weight
information.
•The Federal Communications Commission (FCC) and Canadian Radio
Telecommunications Commission (CRTC) regulate the use of mobile
communications systems - such as two-way radios, telephones and
theft alarms - that are equipped with radio transmitters. Any such
equipment installed in your vehicle should comply with FCC or CRTC
regulations and should be installed only by a qualified service
technician.
•Mobile communications systems may harm the operation of your
vehicle, particularly if they are not properly designed for automotive
use or are not properly installed. When operated, such systems may
cause the engine to stumble or stall or cause the transmission to be
damaged or operate improperly. In addition, such systems may be
damaged or their performance may be affected by operating your
vehicle. (Citizens band [CB] transceivers, garage door openers and
other transmitters with outputs of five watts or less will not ordinarily
affect your vehicle’s operation.)
•Ford cannot assume responsibility for any adverse effects or damage
that may result from the use of such equipment.
2003 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Accessories
237

A
ABS (see Brakes) .....................147
Air bag supplemental
restraint system ................124, 128
and child safety seats ............126
description ......................124, 128
disposal ....................................131
driver air bag ..................126, 129
indicator light ...........13, 128, 130
operation .........................126, 129
passenger air bag ...........126, 129
side air bag ..............................128
Air cleaner filter ...............223, 228
Air conditioning ..........................48
manual heating and air
conditioning system .................46
Air suspension ...........................151
description ..............................151
warning light .............................14
Antifreeze
(see Engine coolant) ................204
Anti-lock brake system
(see Brakes) ..............................147
Audio system (see Radio) .........22
Automatic transmission
driving an automatic
overdrive .................................152
fluid, adding ............................220
fluid, checking ........................220
fluid, refill capacities ..............228
fluid, specification ..................231
Auxiliary power point .................73
Axle
lubricant specifications ..230–231
refill capacities ........................228
traction lok ..............................155
B
Battery .......................................202acid, treating emergencies .....202
charging system warning
light ............................................13
jumping a disabled battery ....175
maintenance-free ....................202
replacement, specifications ...228
servicing ..................................202
voltage gauge ............................19
BeltMinder .................................119
Brakes ................................146–147
anti-lock ...................................147
anti-lock brake system
(ABS) warning light .........12, 147
brake warning light ..................12
fluid, checking and adding ....220
fluid, refill capacities ..............228
fluid, specifications .........230–231
lubricant specifications ..230–231
parking ....................................148
shift interlock ..........................151
Bulbs ............................................57
C
Capacities for refilling fluids ....228
Cassette tape player ...................31
CD changer .................................40
CD-single premium .....................22
Cell phone use ............................90
Certification Label ....................233
Changing a tire .........................170
Child safety restraints ..............131
child safety belts ....................131
Child safety seats ......................134
attaching with tether straps ..138
in front seat ............................136
in rear seat ..............................136
2003 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Index
Index
238

Lubricant specifications ...230–231
Lumbar support, seats .............107
M
Message center ...........................86
reset button ..............................86
select button .............................87
Mirrors
automatic dimming rearview
mirror ........................................76
fold away ...................................76
heated ........................................75
side view mirrors (power) .......75
Moon roof ....................................81
Motorcraft parts ................214, 228
O
Octane rating ............................213
Odometer .....................................20
Oil (see Engine oil) ..................198
Overdrive .............................89, 153
P
Panic alarm feature, remote
entry system ................................96
Parking brake ............................148
Parts (see Motorcraft parts) ....228
Passenger Occupant
Classification Sensor .................111
Pedals (see Power adjustable
foot pedals) .................................76
Power adjustable foot pedals .....76
Power distribution box
(see Fuses) ...............................167
Power door locks ..................92, 98Power mirrors .............................75
Power point .................................73
Power steering ..................150–151
fluid, checking and adding ....219
fluid, refill capacity ................228
fluid, specifications .................230
Power Windows ...........................74
R
Radio ............................................22
Radio reception .....................44–45
Rear window defroster ...............52
Relays ................................163, 170
Remote entry system ...........94, 96
illuminated entry ......................98
locking/unlocking doors ...........95
opening the trunk .....................96
panic alarm ...............................96
replacement/additional
transmitters ...............................97
replacing the batteries .............96
Roadside assistance ..................161
S
Safety Belt Maintenance ..........123
Safety belts (see Safety
restraints) ............16, 109, 113–117
Safety defects, reporting ..........189
Safety restraints ........109, 113–117
belt minder .............................119
extension assembly ................123
for adults .........................114–116
for children .............................131
lap belt ....................................117
Occupant Classification
Sensor ......................................111
2003 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Index
242